Improvement in umbrella-frames



is a full, clear, and exact desoriptiomof the construc-` I tite/il5mmweeezee-w mit Letters Patent No. 92,4%'

IMPROVEMENT IN 'UMBRLLA-FRMES.

2, dated July 13,1869.

Tha Schedule referred to in these Letters Patent and. making psrt of thename.

T o all whom it may concern:

Be itknown that I, HORACE T. ROBBINS, of Boston, county of Suffolk, andState of Massachnsetts,have invented a new and useful Improvement inUmbrellal Frames; and I do hereby declare that the following tion and4operation ot' the same, reference being had to the annexed drawings,making a part of this speci? Figure l is a side view of anumbrella-frame having my improvement applied to it.

Figure 2 is a view ofy one of theribs detached from the frame: v

Figure 3 is a View of the saine taken at right angles to that-0f Iig. 2.

Figure 4 is a side the rib.

Figure 5 isan end view of the same. t Similar letters refer to likeparts in the .di'erent diawings.

a isthe handle. b, the runner. c, the spring, to umbrella is open.

View of the support detached from hold the runner'in place when the d,the spring,;to hold the ruimer in place when4 the umbrella is closed.

e, the notch-plate, j', the stretchers. g, the ribs. la., the rib-jointplates. i, the supports.

."lhe nature of my invention consists in strengthene Y "the handle whenthe umbrella Ais closed;

'ing the frames or' umbrellas and parasols, by providing -the ribs withsupports or stops, to rest aga'nst the stretchers when the umbrella isopen, iu :uh ltion to the joints which connect thestretchers tothe ribs.

This addition greatly increases the rigidity of the sribs, and preventsthem from bending down betweenthe notch-plate and the -ribtoini', plate,when there is an upward pressure on the opposite en .or,'which isfthezsame thing, when -the wind is blowing! against -the"nsdeofftheumbrella:

j construct iu-y improved nn ibrella.i'are in any of the. usual forms,andin orderto give greater rigidity to theA ribs, Iy apply supports`yz', to hear' against the .streteheis v Usually, Lconnect these supportsto the ribsbyfpiessure, in the saine way as-the rib-joint plate 'isattached.- They may, however, he made so asto he turned round onthefrib, out'of the way .when the um. hrellaI is being repaired,l orthey may be made on the same piece with the rihjkoint plate, or they maybe at-l tached'to thestretchers, or thelend of the stretchers,

ynext the rihs,jn1ay be made "in a form to lie hack against the ribs;above the rib-'joint plate. v

The last two arrangements, however, are objectionable, as they do notallow the 'ribs to lie snuglyagaust.

I claim the'snpports fi, in combination witl-xthe'ribs g and stretchersL'fojrthe purposeuof strengthening described. Y

the frames of umbrellaeand parasols, substantially'as nutritionniiiosms4 Witnessesg,fi y EDWIN 'ALBEN ALGER', HENRY B. Tueur, v

